Galaxy S9 has a 5-minute rule on recording 4K 60fps video

The Galaxy S9 and S9+ are some of the best video-recorders out there you can always carry with you, as they offer 4K 60fps footage and optical image stabilization, like Apple's newer iPhones. We say "some of," as Sony's Xperia XZ2 can do true HDR video capture at 10-bit, but it maxes out the 4K recording at 30fps. 

While that's the default on the S9, too, you can switch up to 60fps footage, like on the iPhone 8, 8 Plus, or X, with the necessary warnings about resulting huge video files and so on. There is one more limitation that Samsung has placed ...